I have an unlocked 3GS that I purchased unlocked in Italy. It was jailbroken with jailbreakme.com several weeks ago running ios 4.0.1. Until yesterday, things were just fine. Then last night, when I went to do a little surfing on my home wifi network, it would not connect. (no wifi signal in the status bar, only the circle for GPRS.) My home network is a little more complex than most, and probably more than it needs to be in some areas and less in others. The main WiFi network is not using encryption. (My old ass myth boxes stream from my server better without the encryption.) I also do most of my casual surfing from this network. The AP is a Cisco 1231 and my linux server/firewall is doing the DHCP, transparent proxying of http, and iptables firewalling.

When I go to my preferences/wifi and try to select my home network, it sends me to the "log in" screen, but instead of asking for a username and password, it loads www.apple.com. I first tried "reset network settings". Then a hard boot. Then another rest network settings. I've rebooted my router and the firewall. Bypassed the squid transparent proxying, and it always does the same thing. However, if I connect to the WPA encrypted network in my home, it works fine. (WTF??) Now this would be a viable option, but the WPA AP is not visible from all over the house like the other network is, so that is not optimal. I haven't had time yet to restore the phone. It's not hardware or the WPA network wouldn't work. Nothing has changed on my home network/firewall/router in ages, nor had any of it been rebooted in the last week or so before last night. Also, my ipod Touch running 3.1 is not having any problems connecting to through the open AP, only the iphone.

I've googled around and seen issues with >4.0 not remembering login passwords on open APs, but those don't seem to apply to this problem. Nothing else I've found even comes close.

Any ideas?

Are you running SBSettings and OpenSSH? In a separate thread on this forum we've encountered similar issues that people have been able to resolve by removing OpenSSH entirely and rebooting the phone -- no true solution has been found yet, but there are a few people discussing the issue here:

http://www.hackint0sh.org/f236/148578.htm

Thanks. I'll check it out.

FYI, it worked fine when I came home from work that day, and I almost forgot out it. Until today when it started doing it again....